This article was not helpful. Notice in above picture, Code 10 error. Main cause of this issue is because the device you own contains a counterfeit “Prolific” chip China clone. You must follow ever step in the process in exact order. And it addresses issue of:

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Even vendors selling their “USB to Serial” adapters are baffled. Or contact our worldwide distributors for other cable product reference and chip samples. Unfortunately this segial also renders pl2303 serial to usb earlier adapters inoperative.

Where to Buy

Available forum solutions to this problem are half-baked. Run the installer program.

Website Design by Alvitr. Prolific will take proper and severe actions to cease and confiscate these counterfeit products. Prolific also prohibits the distribution of any PL drivers including download links without written permission from Prolific.

The “Driver Version” must say “3.

Prolific recommends following vendor cable brands: This article was not helpful. Taipei Headquarter 7F, No. What worsens this issue is that there are many “Prolific Driver Removal Tools” that do not work properly.

Counterfeit IC products show exactly the same outside chip markings but generally are of poor quality and causes Pl2303 serial to usb driver compatibility issues Yellow Mark Error Code 10 in Device Manager. Prolific advices end-users to only purchase vendor branded cable products with company name contact information for service and support. pl2330

Notice in above picture, Code 10 error. We issue this warning to all our customers and consumers to pl2303 serial to usb confusion and false purchase. That means correct driver version is not installed. The “Driver Version” must say “2. In summary, this article is for: PL CheckChipVersion tool program.

Plugable USB to RS DB9 Serial Adapter (Prolific PLHX Chipset) – Plugable

However if you didn’t have a previous driver installed that worked – you’ll have to go through the process of removing any PL driver installation programs, the actual driver pl2303 serial to usb, and the information. If eerial, then the correct driver is not installed. And if you double-click on it, you will see: Home Contact Support Knowledgebase Downloads.


Only bit driver I have ever found that works with all the “Prolific” adapters is Version 3. Pl2303 serial to usb no matter how many times you remove the driver files and reboot – the next time you insert the USB-To-Serial adapter, Windows installs the newest non-working version again. If you want to delete it – use the Windows “Uninstall seiral Program” or serrial or Remove Program” feature – however this will also uninstall the driver itself.

Prolific Technology Inc. (USB to UART / RS / Serial)

And Windows 8, 8. In case you suspect a counterfeit chip inside, you may also contact Prolific to provide the vendor information. Main cause of this issue is pl2303 serial to usb the device you own contains a counterfeit “Prolific” chip China clone. This article was helpful.

Issue will also may show messages like this: In the Properties Window, Click on “Driver”. Good Way Technology Co. You must follow ever pl2303 serial to usb in the process in exact order. And it addresses issue of: